Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
The word collactanea could not be parsed. Trying a normal dictionary lookup:
No entries found. Showing closest matches:
col-lactānĕus (conl-), a [lacteo], a brother or sister nourished at the same breast, a foster-brother or sister (post-class.); masc., Gai Inst. 1, 39; Dig. 40, 2, 13; Inscr. Orell. 2281 al.; fem., Dig. 34, 4, 30, § 1 al.